Home / 100,740,426.30-150,858,697.05-80,585,034.30

Finding the Fourth Proportional to 100,740,426.30, 150,858,697.05 and 80,585,034.30

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Solution

The fourth proportional to 100,740,426.30, 150,858,697.05 and 80,585,034.30 is: 120,676,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,740,426.30 : 150,858,697.05 = 80,585,034.30 : x
  2. Step 2: Convert to fraction form
    100,740,426.30/150,858,697.05 = 80,585,034.30/x
  3. Step 3: Cross multiply
    100,740,426.30x = 150,858,697.05 × 80,585,034.30
  4. Step 4: Simplify right side
    100,740,426.30x = 12,156,953,276,227,560
  5. Step 5: Solve for x
    x = 12,156,953,276,227,560/100,740,426.30
  6. Step 6: Final answer
    x = 120,676,015.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.